A Quality Strategy for Flood Protection

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Information about A Quality Strategy for Flood Protection

Published on January 30, 2009

Author: duckcy04

Source: slideshare.net

Description

Presentation to New Orleans Chapter ASQ on current status and recommendations for improved flood protection of Southeastern Louisiana

Quality Flood Protection SLFPA- The New Levee Boards By J.M. Drake PE, CQE, CSP Greater New Orleans Section 1518 Team Website: http://section1518.asqquality.org

Agenda The Problem The Challenge The State’s Response Mission and Vision of the SLFPA Systems Approach Project Execution Quality Modeling Techniques Highlights of two important Projects/ Initiatives Recommendations and Conclusions

The Problem

The Challenge

The State’s Response

Mission and Vision of the SLFPA

Systems Approach Project Execution

Quality Modeling Techniques

Highlights of two important Projects/ Initiatives

Recommendations and Conclusions

The Problem

The Past- Hurricane Katrina Legacy More than 1500 lives lost Category 5 strength less then 12 hours before landfall- 127 mph winds at Louisiana landfall Maximum surge 28 to 30 feet along Mississippi coast 75-80% of Greater New Orleans land areas flooded 138,000 Residences Lost; 12,000 Business Facilities; 304,000 Vehicles > $18 Billion Dollars in damages

More than 1500 lives lost

Category 5 strength less then 12 hours before landfall- 127 mph winds at Louisiana landfall

Maximum surge 28 to 30 feet along Mississippi coast

75-80% of Greater New Orleans land areas flooded

138,000 Residences Lost; 12,000 Business Facilities; 304,000 Vehicles > $18 Billion Dollars in damages

The Challenge: Protect Southeast Louisiana

The State’s Response Southeast Louisiana Flood Protection Authority (SLFPA) SLFPA – East SLFPA – West Bank Coastal Protection and Restoration Authority (CPRA)

Southeast Louisiana Flood Protection Authority (SLFPA)

SLFPA – East

SLFPA – West Bank

Southeast Louisiana Land Loss

Complex Global Environmental Changes

To demand that focus be on flood related duties To remove opportunities for patronage To create regional levee protection To provide constitutional protection of the new districts Need for Flood Protection Legislation Governor Blanco’s letter to Legislature dated Dec 10, 2005 contained following objectives:

To demand that focus be on flood related duties

To remove opportunities for patronage

To create regional levee protection

To provide constitutional protection of the new districts

Levee Board Reform Legislation Act 1 of 2006 LA Legislature created SLFPA and CPRA Southeast Louisiana Flood Protection Authority (SLFPA) Two “super levee boards” East and West of the Mississippi River with jurisdiction over multi-parish regions Replaced the Pre Katrina numerous and ineffectual levee boards Post Katrina the electorate supported the Constitutional Amendment which was passed by 81% of voters. Abolished old structure and established new organizations Coastal Protection and Restoration Authority (CPRA) Single State Entity responsible for the Comprehensive Protection Plan State wide

Act 1 of 2006 LA Legislature created SLFPA and CPRA

Southeast Louisiana Flood Protection Authority (SLFPA)

Two “super levee boards” East and West of the Mississippi River with jurisdiction over multi-parish regions

Replaced the Pre Katrina numerous and ineffectual levee boards

Post Katrina the electorate supported the Constitutional Amendment which was passed by 81% of voters.

Abolished old structure and established new organizations

Coastal Protection and Restoration Authority (CPRA) Single State Entity responsible for the Comprehensive Protection Plan State wide

LA CPRA’S Role “ The Coastal Protection and Restoration Authority is established, authorized, and empowered to carry out any and all functions necessary to serve as the single entity responsible to act as the local sponsor for construction, operation and maintenance of all of the hurricane, storm damage reduction and flood control projects in areas under its jurisdiction, including the greater New Orleans and southeast Louisiana area.” - Louisiana Senate Bill 8, 2006

“ The Coastal Protection and Restoration Authority is established, authorized, and empowered to carry out any and all functions necessary to serve as the single entity responsible to act as the local sponsor for construction, operation and maintenance of all of the hurricane, storm damage reduction and flood control projects in areas under its jurisdiction, including the greater New Orleans and southeast Louisiana area.”

- Louisiana Senate Bill 8, 2006

The People Governor Louisiana Legislature CPRA SLFPA East SLFPA West Bank Plaquemines Parish Government Grand Isle Independent District South Lafourche Levee District Lafourche Basin Levee District North Lafourche Levee District Pontchartrain Levee District Atchafalaya Basin Levee District Terrebonne Levee & Conservation District St. Mary Parish Government Southwestern Louisiana - TBD Cameron, Vermilion, & Iberia

SLFPA Regional Territories -- Coastal Boundary

Nom Cmttee SLFPA – East National Academy of Engineering National Society of Black Engineers National Society of Professional Engineers American Institute of Hydrology American Society of Civil Engineers Association of State Floodplain Managers UNO - College of Engineering SU – College of Engineering Tulane - School of Science and Engineering LSU - Louisiana Geological Survey Public Affairs Research Council (PAR) Council for a Better Louisiana (CABL) Nominating Committee Submit Nominations to the Governor for Appointment Senate Confirmation SLFPA Nomination Process Nom Cmttee SLFPA – West Bank: All of the Above Harvey Canal Industrial Association Our Lady of Holy Cross College Selection Process for the Boards

SLFPA Membership & Nomination Process Nominating Committee shall recommend one name for those members listed in #3 above and two names for those listed in #2 and #4 above for each board position to the Governor The Governor shall appoint from the list of nominations Senate Confirmation Required Term Limits Staggered Terms Members prohibited from political activity subject to the Louisiana Board of Ethics SLFPA – East Total of 11 Members of which no more or no less than one member from each parish in the SLFPA - East. 3 At-Large members 5 members who shall either be an engineer or a professional in a related field such as geotechnical, hydrological, or environmental science 3 members who shall be a professional in a discipline other than that occurring in (# 3 above) with at least 10 years of professional experience in that discipline SLFPA – West Bank Total of 7 Members of which no more or no less than two members from each parish in the SLFPA – West Bank. 2 At-Large members 3 members who shall either be an engineer or a professional in a related field such as geotechnical, hydrological, or environmental science 2 members who shall be a professional in a discipline other than that occurring in (# 3 above) with at least 10 years of professional experience in that discipline

Nominating Committee shall recommend one name for those members listed in #3 above and two names for those listed in #2 and #4 above for each board position to the Governor

The Governor shall appoint from the list of nominations

Senate Confirmation Required

Term Limits

Staggered Terms

Members prohibited from political activity subject to the Louisiana Board of Ethics

SLFPA – East

Total of 11 Members of which no more or no less than one member from each parish in the SLFPA - East.

3 At-Large members

5 members who shall either be an engineer or a professional in a related field such as geotechnical, hydrological, or environmental science

3 members who shall be a professional in a discipline other than that occurring in (# 3 above) with at least 10 years of professional experience in that discipline

SLFPA – West Bank

Total of 7 Members of which no more or no less than two members from each parish in the SLFPA – West Bank.

2 At-Large members

3 members who shall either be an engineer or a professional in a related field such as geotechnical, hydrological, or environmental science

2 members who shall be a professional in a discipline other than that occurring in (# 3 above) with at least 10 years of professional experience in that discipline

SLFPA Goal and Objectives Integrated, Risk Based, Flood Protection That provides Citizen Safety and Peace of Mind That is sustainable with respect to the environment, and the system’s design, construction, maintenance and operation

Integrated, Risk Based, Flood Protection

That provides Citizen Safety and Peace of Mind

That is sustainable with respect to the environment, and the system’s design, construction, maintenance and operation

Vision Statement The SLFPA provides and maintains a robust regional flood protection system that is based on the principles of ecologic integrity, economic vitality and social equity, that mitigates the adverse effects of natural phenomena, and assures the safety of its citizens and requisite real property in a responsible manner.

The SLFPA provides and maintains a robust regional flood protection system that is based on the principles of ecologic integrity, economic vitality and social equity, that mitigates the adverse effects of natural phenomena, and assures the safety of its citizens and requisite real property in a responsible manner.

Mission of the SLFPA The SLFPA will construct and maintain drainage works of all types related to tidewater flooding, hurricane protection, precipitation, subsidence, and saltwater intrusion and assure the readiness and quality of each protective element within the system, either in cooperation with other governmental entities, or upon its own undertaking. As a critical element of Louisiana’s Comprehensive Coastal Protection Plan and Strategy, the SLFPA will comply with all federal and state, law and regulation, regarding rehabilitation assistance for flood control works in a manner balanced between conservation and development. 3. The SLFPA will mitigate the adverse affects of natural phenomena while holding paramount the public safety and welfare in Southeastern Louisiana. Ref: Act 1, SB No 8, 1st Extraordinary Session, LA Legislature 2006

The SLFPA will construct and maintain drainage works of all types related to tidewater flooding, hurricane protection, precipitation, subsidence, and saltwater intrusion and assure the readiness and quality of each protective element within the system, either in cooperation with other governmental entities, or upon its own undertaking.

As a critical element of Louisiana’s Comprehensive Coastal Protection Plan and Strategy, the SLFPA will comply with all federal and state, law and regulation, regarding rehabilitation assistance for flood control works in a manner balanced between conservation and development.

3. The SLFPA will mitigate the adverse affects of natural phenomena while holding paramount the public safety and welfare in Southeastern Louisiana.

Greater New Orleans Flood Protection System

A Systematic Approach to Flood Protection

Project Execution Methodology

Quality Factors and Influence Diagram

GNO Regional Protection

Strategy: Defense in Depth

NORMAL LAKE 1.0 FT LEVEL SPH DESIGN ELEV 11.5 FT 17.5 FT HURRICANE PROTECTION LEVEE & FLOODWALL AVG ANNUAL HIGHWATER 14 FT 18 FT PROJECT FLOWLINE 23 FT FLOODWALL ALONG MISSISSIPPI RIVER GENTILLY RIDGE UNO UNO SIDE OF WAINRIGHT DR WAINRIGHT DR AT L.C. SIMON ST. ANTHONY AT WILDAIR DR DILLARD UNIV CAMPUS GENTILLY BLVD AT ALLEN DERBIGNY AT I-10 ESPLANADE AT ST. CLAUDE ST. LOUIS CATHEDRAL CANAL ST AT RIVER -20 -10 0 10 20 30 B LAKE PONTCHARTRAIN SHORE RIVER BANK MISSISSIPPI A City of New Orleans Ground Elevations From Canal St. at Mississippi River to the Lakefront at U.N.O. NEW ORLEANS LAKE PONTCHARTRAIN MISSISSIPPI RIVER B A ELEVATIONS IN FEET NGVD -20 -10 0 10 20 30

Factor of Safety (FS) = Capacity (R ) / Demand (SD) Protected Side: 1.8 < FS < 3.0 Structural Failure occurs at FS < 1.0 For large civil works: 1.8 < FS < 3.0

Hurricane Risk Analysis and Modeling

Compromises in Quality

Recent Flood Protection Assessments

Quality Modeling Techniques Performance Analysis Program and Project Control and Management Event Tree Modeling Replacement Costs of Loss Analysis Hydrostatic and Dynamic Modeling System Elemental Modeling Storm Surge Modeling

Performance Analysis

Program and Project Control and Management

Event Tree Modeling

Replacement Costs of Loss Analysis

Hydrostatic and Dynamic Modeling

System Elemental Modeling

Storm Surge Modeling

Performance Analysis

Event Tree Modeling

Replacement Costs of Loss Analysis

Hydrostatic and Hydrodynamic Modeling

System Elemental Modeling

SLFPA- East Website

Storm Surge Modeling

New Orleans Levee System

Greater New Orleans HSDRRS

Before Katrina, you had a 1% chance every year of flooding this deep from Hurricanes Notes: The depth map tool is a relative indicator of progress, over time, demonstrating risk reduction as a function of construction progress The water surface elevations are mean values The scale sensitivity of the legend is +/- 2 feet The info does not depict interior drainage modeling results The storm surge is characterized as the result of a probabilistic analysis of 5 to 6 storm parameters of a suite of 152 storms and not a particular event Assumes 0% Pumping Capacity March 08

Notes:

The depth map tool is a relative indicator of progress, over time, demonstrating risk reduction as a function of construction progress

The water surface elevations are mean values

The scale sensitivity of the legend is +/- 2 feet

The info does not depict interior drainage modeling results

The storm surge is characterized as the result of a probabilistic analysis of 5 to 6 storm parameters of a suite of 152 storms and not a particular event

With the 100-year level of protection, you have a 1% chance every year of flooding this deep from Hurricanes March 08 Notes: The depth map tool is a relative indicator of progress, over time, demonstrating risk reduction as a function of construction progress The water surface elevations are mean values The scale sensitivity of the legend is +/- 2 feet The info does not depict interior drainage modeling results The storm surge is characterized as the result of a probabilistic analysis of 5 to 6 storm parameters of a suite of 152 storms and not a particular event Assumes 100% Pumping Capacity

Notes:

The depth map tool is a relative indicator of progress, over time, demonstrating risk reduction as a function of construction progress

The water surface elevations are mean values

The scale sensitivity of the legend is +/- 2 feet

The info does not depict interior drainage modeling results

The storm surge is characterized as the result of a probabilistic analysis of 5 to 6 storm parameters of a suite of 152 storms and not a particular event

Highlighted Projects West Closure Project- West Bank 100 Year IHNC Project- Michoud, St Bernard

West Closure Project- West Bank

100 Year IHNC Project- Michoud, St Bernard

GIWW West Closure Complex

GIWW West Closure Complex

Parallel verses Closed Protection

100 Year IHNC Project- Michoud, St Bernard

“ Closing the Vee” at the Michoud Confluence

Proposed Flood Wall Structure

Rebuilding Wetlands

 

Recommendations and Conclusions System’s Approach to a Quality Flood Protection Defense in Depth thru Environmental Modeling Adequate Project scope, funding and schedules Results will be greater protection and peace of mind for area citizens and businesses Ecologic Integrity Economic Vitality Social Equity

System’s Approach to a Quality Flood Protection

Defense in Depth thru Environmental Modeling

Adequate Project scope, funding and schedules

Results will be greater protection and peace of mind for area citizens and businesses

Ecologic Integrity

Economic Vitality

Social Equity

References and Helpful Sites SLFPA- East http://www.slfpae.com/default.htm LA Coastal Protection and Restoration Authority http://www.lacpra.org/ http://www.lacpr.usace.army.mil/default.aspx New Orleans District US Army Corps of Engineers http://www.mvn.usace.army.mil/ NOLA Environmental http://www.nolaenvironmental.gov/ Post Katrina Investigatory Reports Interagency Performance Evaluation Team https://ipet.wes.army.mil/ Independent Evaluation Team: http://www.ce.berkeley.edu/%7Enew_orleans/ Team Louisiana: http://www.publichealth.hurricane.lsu.edu/TeamLA.htm LSU Hurricane Center https://www.hurricane.lsu.edu US Geological Survey http://www.usgs.gov/ ASQ Greater New Orleans Section 1518 Team Website http://section1518.asqquality.org

SLFPA- East

http://www.slfpae.com/default.htm

LA Coastal Protection and Restoration Authority

http://www.lacpra.org/

http://www.lacpr.usace.army.mil/default.aspx

New Orleans District US Army Corps of Engineers

http://www.mvn.usace.army.mil/

NOLA Environmental

http://www.nolaenvironmental.gov/

Post Katrina Investigatory Reports

Interagency Performance Evaluation Team https://ipet.wes.army.mil/

Independent Evaluation Team: http://www.ce.berkeley.edu/%7Enew_orleans/

Team Louisiana: http://www.publichealth.hurricane.lsu.edu/TeamLA.htm

LSU Hurricane Center

https://www.hurricane.lsu.edu

US Geological Survey

http://www.usgs.gov/

ASQ Greater New Orleans Section 1518 Team Website

http://section1518.asqquality.org

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